Recommanded Product: 2-Bromo-1-(1-methyl-1H-pyrrol-2-yl)ethanone. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Bromo-1-(1-methyl-1H-pyrrol-2-yl)ethanone, is researched, Molecular C7H8BrNO, CAS is 65438-97-3, about Visible-Light-Mediated Addition of Phenacyl Bromides onto Cyclopropenes. Author is Dange, Nitin S.; Hussain Jatoi, Ashique; Robert, Frederic; Landais, Yannick.
In the presence of the photocatalyst fac-Ir(ppy)3 (ppy = 2-pyridinylphenyl), K2CO3, and LiBr in DMF, aryl bromomethyl ketones such as phenacyl bromide underwent chemoselective photochem. addition and cyclization reactions with cyclopropenecarboxylates such as I under irradiation with blue LED at 0° followed by base-mediated ring opening at 60° without irradiation to give oxonaphthaleneacetates such as II and oxobenzo-fused heterocyclylacetates in 16-51% yields. Nonracemic II was prepared in 40% yield and 95:5 er by the reaction of nonracemic I (95:5 er) with phenacyl bromide. Oxonaphthaleneacetates derived from this reaction can be further converted in one or two steps to polycyclic products such as naphthopyranacetate III and benzoindeneacetate IV.
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Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem